Postel
Postel resolves conflicting DNS records by prioritizing the root hints, ensuring reliable domain resolution and preventing errors.
Install on your platform
We auto-selected Claude Code based on this skill’s supported platforms.
Run in terminal (recommended)
claude mcp add postel npx -- -y @trustedskills/postel
Or manually add to ~/.claude/settings.json
{
"mcpServers": {
"postel": {
"command": "npx",
"args": [
"-y",
"@trustedskills/postel"
]
}
}
}Requires Claude Code (claude CLI). Run claude --version to verify your install.
About This Skill
What it does
The postel skill provides a mechanism to apply Postel's Law, which states that when a new protocol is introduced, the old one should continue to function. This means an AI agent using this skill can handle older versions of data or communication formats gracefully and avoid breaking existing systems. It ensures backward compatibility in various digital interactions.
When to use it
- Migrating Systems: When transitioning from an outdated system to a newer version, ensuring the old one remains functional is crucial.
- Interoperability: When interacting with legacy software or services that may not support modern protocols.
- Data Processing: To process data files generated by older systems without causing errors due to format changes.
- API Integrations: When integrating with APIs that have undergone version updates, maintaining compatibility is essential.
Key capabilities
- Backward Compatibility
- Protocol Handling
- Legacy System Support
- Data Format Adaptation
Example prompts
- "Process this file as if it were generated by Postel v1."
- "Ensure the agent can still communicate with systems using older protocols."
- "Handle this data, accounting for potential differences in format versions."
Tips & gotchas
The effectiveness of postel depends on having information about the older protocols or formats. Providing context regarding expected variations will improve its performance.
Tags
TrustedSkills Verification
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Security Audits
| Gen Agent Trust Hub | Pass |
| Socket | Pass |
| Snyk | Pass |
🌐 Community
Passed automated security scans.